﻿using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using Web4Comment.Common;
namespace UnlessComment.DAL
{
    /// <summary>
    /// 数据访问类:User
    /// </summary>
    public partial class User
    {
        public User()
        { }
        #region  Method
        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(int id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from [User]");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)
			};
            parameters[0].Value = id;

            return DbHelperSQL.Exists(strSql.ToString(), parameters);
        }


        /// <summary>
        /// 增加一条数据
        /// </summary>
        public int Add(UnlessComment.Model.User model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into [User](");
            strSql.Append("username,email,password,is_active,date_join,last_login)");
            strSql.Append(" values (");
            strSql.Append("@username,@email,@password,@is_active,@date_join,@last_login)");
            strSql.Append(";select @@IDENTITY");
            SqlParameter[] parameters = {
					new SqlParameter("@username", SqlDbType.VarChar,20),
					new SqlParameter("@email", SqlDbType.VarChar,255),
					new SqlParameter("@password", SqlDbType.VarChar,30),
					new SqlParameter("@is_active", SqlDbType.Bit,1),
					new SqlParameter("@date_join", SqlDbType.DateTime),
					new SqlParameter("@last_login", SqlDbType.DateTime)};
            parameters[0].Value = model.username;
            parameters[1].Value = model.email;
            parameters[2].Value = model.password;
            parameters[3].Value = model.is_active;
            parameters[4].Value = model.date_join;
            parameters[5].Value = model.last_login;

            object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
            if (obj == null)
            {
                return 0;
            }
            else
            {
                return Convert.ToInt32(obj);
            }
        }
        /// <summary>
        /// 更新一条数据
        /// </summary>
        public bool Update(UnlessComment.Model.User model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("update [User] set ");
            strSql.Append("username=@username,");
            strSql.Append("email=@email,");
            strSql.Append("password=@password,");
            strSql.Append("is_active=@is_active,");
            strSql.Append("date_join=@date_join,");
            strSql.Append("last_login=@last_login");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@username", SqlDbType.VarChar,20),
					new SqlParameter("@email", SqlDbType.VarChar,255),
					new SqlParameter("@password", SqlDbType.VarChar,30),
					new SqlParameter("@is_active", SqlDbType.Bit,1),
					new SqlParameter("@date_join", SqlDbType.DateTime),
					new SqlParameter("@last_login", SqlDbType.DateTime),
					new SqlParameter("@id", SqlDbType.Int,4)};
            parameters[0].Value = model.username;
            parameters[1].Value = model.email;
            parameters[2].Value = model.password;
            parameters[3].Value = model.is_active;
            parameters[4].Value = model.date_join;
            parameters[5].Value = model.last_login;
            parameters[6].Value = model.id;

            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        /// <summary>
        /// 删除一条数据
        /// </summary>
        public bool Delete(int id)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from [User] ");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)
			};
            parameters[0].Value = id;

            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        /// <summary>
        /// 批量删除数据
        /// </summary>
        public bool DeleteList(string idlist)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from [User] ");
            strSql.Append(" where id in (" + idlist + ")  ");
            int rows = DbHelperSQL.ExecuteSql(strSql.ToString());
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }


        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public UnlessComment.Model.User GetModel(int id)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("select  top 1 id,username,email,password,is_active,date_join,last_login from [User] ");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)
			};
            parameters[0].Value = id;

            UnlessComment.Model.User model = new UnlessComment.Model.User();
            DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
            if (ds.Tables[0].Rows.Count > 0)
            {
                if (ds.Tables[0].Rows[0]["id"] != null && ds.Tables[0].Rows[0]["id"].ToString() != "")
                {
                    model.id = int.Parse(ds.Tables[0].Rows[0]["id"].ToString());
                }
                if (ds.Tables[0].Rows[0]["username"] != null && ds.Tables[0].Rows[0]["username"].ToString() != "")
                {
                    model.username = ds.Tables[0].Rows[0]["username"].ToString();
                }
                if (ds.Tables[0].Rows[0]["email"] != null && ds.Tables[0].Rows[0]["email"].ToString() != "")
                {
                    model.email = ds.Tables[0].Rows[0]["email"].ToString();
                }
                if (ds.Tables[0].Rows[0]["password"] != null && ds.Tables[0].Rows[0]["password"].ToString() != "")
                {
                    model.password = ds.Tables[0].Rows[0]["password"].ToString();
                }
                if (ds.Tables[0].Rows[0]["is_active"] != null && ds.Tables[0].Rows[0]["is_active"].ToString() != "")
                {
                    if ((ds.Tables[0].Rows[0]["is_active"].ToString() == "1") || (ds.Tables[0].Rows[0]["is_active"].ToString().ToLower() == "true"))
                    {
                        model.is_active = true;
                    }
                    else
                    {
                        model.is_active = false;
                    }
                }
                if (ds.Tables[0].Rows[0]["date_join"] != null && ds.Tables[0].Rows[0]["date_join"].ToString() != "")
                {
                    model.date_join = DateTime.Parse(ds.Tables[0].Rows[0]["date_join"].ToString());
                }
                if (ds.Tables[0].Rows[0]["last_login"] != null && ds.Tables[0].Rows[0]["last_login"].ToString() != "")
                {
                    model.last_login = DateTime.Parse(ds.Tables[0].Rows[0]["last_login"].ToString());
                }
                return model;
            }
            else
            {
                return null;
            }
        }

        /// <summary>
        /// 获得数据列表
        /// </summary>
        public DataSet GetList(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select id,username,email,password,is_active,date_join,last_login ");
            strSql.Append(" FROM [User] ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            return DbHelperSQL.Query(strSql.ToString());
        }

        public DataSet GetFriendsList(int strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select [User].id,username,email,password,is_active,date_join,last_login ");
            strSql.Append(" FROM [User] INNER JOIN Friend ON [User].id = Friend.friend_id");
            strSql.Append(" where Friend.host_id = " + strWhere);
            return DbHelperSQL.Query(strSql.ToString());
        }

        /// <summary>
        /// 获得前几行数据
        /// </summary>
        public DataSet GetList(int Top, string strWhere, string filedOrder)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select ");
            if (Top > 0)
            {
                strSql.Append(" top " + Top.ToString());
            }
            strSql.Append(" id,username,email,password,is_active,date_join,last_login ");
            strSql.Append(" FROM [User] ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            strSql.Append(" order by " + filedOrder);
            return DbHelperSQL.Query(strSql.ToString());
        }

        /// <summary>
        /// 获取记录总数
        /// </summary>
        public int GetRecordCount(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) FROM [User] ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            object obj = DbHelperSQL.GetSingle(strSql.ToString());
            if (obj == null)
            {
                return 0;
            }
            else
            {
                return Convert.ToInt32(obj);
            }
        }
        /// <summary>
        /// 分页获取数据列表
        /// </summary>
        public DataSet GetListByPage(string strWhere, string orderby, int startIndex, int endIndex)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("SELECT * FROM ( ");
            strSql.Append(" SELECT ROW_NUMBER() OVER (");
            if (!string.IsNullOrEmpty(orderby.Trim()))
            {
                strSql.Append("order by T." + orderby);
            }
            else
            {
                strSql.Append("order by T.id desc");
            }
            strSql.Append(")AS Row, T.*  from [User] T ");
            if (!string.IsNullOrEmpty(strWhere.Trim()))
            {
                strSql.Append(" WHERE " + strWhere);
            }
            strSql.Append(" ) TT");
            strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
            return DbHelperSQL.Query(strSql.ToString());
        }

        /*
        /// <summary>
        /// 分页获取数据列表
        /// </summary>
        public DataSet GetList(int PageSize,int PageIndex,string strWhere)
        {
            SqlParameter[] parameters = {
                    new SqlParameter("@tblName", SqlDbType.VarChar, 255),
                    new SqlParameter("@fldName", SqlDbType.VarChar, 255),
                    new SqlParameter("@PageSize", SqlDbType.Int),
                    new SqlParameter("@PageIndex", SqlDbType.Int),
                    new SqlParameter("@IsReCount", SqlDbType.Bit),
                    new SqlParameter("@OrderType", SqlDbType.Bit),
                    new SqlParameter("@strWhere", SqlDbType.VarChar,1000),
                    };
            parameters[0].Value = "User";
            parameters[1].Value = "id";
            parameters[2].Value = PageSize;
            parameters[3].Value = PageIndex;
            parameters[4].Value = 0;
            parameters[5].Value = 0;
            parameters[6].Value = strWhere;	
            return DbHelperSQL.RunProcedure("UP_GetRecordByPage",parameters,"ds");
        }*/

        #endregion  Method
    }
}

